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Diodes Incorporated PI74FCT16244ATVE
- Part No.:
- PI74FCT16244ATVE
- Manufacturer:
- Diodes Incorporated
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
PI74FCT16244ATVE.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,208
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Product details
Overview
PI74FCT16244ATVE from Pericom Semiconductor is a non-inverting 16-bit buffer/line driver with quad-nibble 3-state control, designed for high-capacitance backplane and bus interface applications. It delivers ±32mA/64mA output drive (IOH/ IOL), supports live insertion via power-off disable, and operates at 5V ±10% with input hysteresis and typical ground bounce <1.0V.
For engineers reviewing the PI74FCT16244ATVE datasheet, PI74FCT16244ATVE pinout, PI74FCT16244ATVE application, or PI74FCT16244ATVE equivalent, key selection criteria include 3-state enable timing (tPZH ≤ 4.4ns), propagation delay (tPLH ≤ 3.2ns), output skew (≤0.5ns), and TSSOP-48 package compatibility with high-density PCB layouts.
Technical Context
This device implements four independent 4-bit non-inverting buffers, each with dedicated active-low 3-state output enable (xOE). Its flow-through pinout minimizes trace crossing in backplane routing, and the power-off disable feature ensures outputs enter high-impedance state when VCC = 0V - critical for hot-swap board insertion.
The PI74FCT16244ATVE uses Fast CMOS technology with TTL-compatible inputs and balanced drive strength optimized for low ground bounce. It does not include current-limiting resistors (unlike the PI74FCT162244T), enabling higher peak drive but requiring external termination in impedance-sensitive interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5.0V ±10% - compatible with standard TTL/CMOS logic rails and industrial 5V systems |
| IOH / IOL | –32mA / 64mA - drives heavy capacitive loads (e.g., >100pF buses) without signal degradation |
| tPLH / tPHL | ≤3.2ns @ CL=50pF - enables >300MHz data throughput in synchronous bus designs |
| tPZH / tPHZ | ≤4.4ns / ≤4.3ns - supports fast enable/disable sequencing in multi-drop timing-critical systems |
| VOLP (Ground Bounce) | <1.0V @ TA=25°C - reduces noise coupling into adjacent signal or power domains |
| Input Hysteresis | 100mV - improves noise immunity on slow-rising or noisy control lines (e.g., board-level OE signals) |
| CIN / COUT | 4.5pF / 5.5pF typical - low input loading preserves signal integrity on fan-out-heavy nodes |
Pinout & Package
Package: 48-pin plastic TSSOP (240-mil wide, package code A), Pb-free & Green compliant (E suffix), 0.5mm pitch, 7.6mm × 12.5mm body size.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low 3-state enable inputs | Independent control per 4-bit nibble - enables flexible bus segmentation and partial driving |
| 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 | Non-inverting input terminals | 16 total inputs mapped to corresponding nibble groups - supports flow-through layout with minimal layer transitions |
| 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 | Non-inverting 3-state outputs | 16 buffered outputs with rail-to-rail swing - maintains logic levels across long traces or unterminated stubs |
| VCC (Pins 7, 15, 23, 31, 39) | Power supply connections | Five distributed VCC pins reduce IR drop and improve PSRR in high-speed switching |
| GND (Pins 1, 9, 17, 25, 33, 41) | Ground return connections | Six GND pins provide low-inductance return paths - essential for minimizing simultaneous switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Power-off disable | Outputs go high-Z when VCC = 0V - enables safe live insertion into powered backplanes without bus contention |
| Flow-through pinout | Inputs and outputs aligned on opposite sides - eliminates vias and crossovers in dense 16-bit bus routing |
| TTL-compatible inputs with hysteresis | VIH = 2.0V min, VIL = 0.8V max, 100mV hysteresis - robust against EMI and slow-edge control signals |
| High-current drive asymmetry | 64mA sink vs. 32mA source - optimized for driving capacitive loads where pull-down dominates settling time |
Applications
| Backplane Interface Driver | Industrial Bus Repeater |
|---|---|
Use Scenario: Driving 16-bit parallel address/data bus across 15cm+ backplane with >80pF total load capacitance. IC Role / Device Role / Timing Role: Non-inverting buffer with per-nibble 3-state control - isolates segments during arbitration and enables hot-swap expansion cards. Use Value: 64mA sink current ensures fast LOW-to-HIGH transition recovery after heavy capacitive charging; tPHZ ≤ 4.3ns prevents output glitches during enable/disable transitions. | Use Scenario: Repeating RS-485 or CAN controller signals between isolated zones in programmable logic controllers. IC Role / Device Role / Timing Role: Level-shifting and fan-out buffer - translates 3.3V controller outputs to 5V bus voltage while providing 16mA margin per line. Use Value: Input hysteresis rejects common-mode noise on factory-floor wiring; low ground bounce (<1.0V) prevents false triggering of downstream receivers. |
| Test Equipment Signal Conditioning | Legacy System Bus Extender |
Use Scenario: Conditioning 16-bit DUT interface signals in automated test equipment with mixed-voltage probe cards. IC Role / Device Role / Timing Role: Bidirectional buffer with independent nibble enables - synchronizes signal capture windows across multiple DUT channels. Use Value: 3.2ns max propagation delay enables sub-300ps timing resolution; flow-through pinout simplifies probe card layout and reduces skew between channels. | Use Scenario: Extending ISA or VMEbus signals from motherboard to mezzanine cards in avionics subsystems. IC Role / Device Role / Timing Role: High-drive bus driver with live-insertion support - allows field-replaceable I/O modules without system shutdown. Use Value: Power-off disable prevents backfeeding into powered backplane; 5V tolerance ensures compatibility with legacy 5V-only peripherals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit non-inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT16244CPAG | Same pinout, identical DC specs, but slower max speed grade (–C vs –A); tPLH ≤ 4.1ns | Limited to ≤250MHz bus operation; unsuitable for high-frequency backplane timing margins | Select only if cost sensitivity outweighs timing headroom requirements |
| 74ALVC16244PW | 3.3V-only supply (1.65–3.6V), lower drive (±24mA), no power-off disable | Requires level translation for 5V systems; incompatible with live-insertion architectures | Choose only for new 3.3V designs where power efficiency and smaller footprint outweigh 5V interoperability |
Compared with SN74FCT16244CPAG and 74ALVC16244PW, the PI74FCT16244ATVE uniquely combines 5V operation, live-insertion capability, and 3.2ns propagation delay - making it the sole option for high-speed, hot-pluggable 5V backplane drivers.
Availability
PI74FCT16244ATVE is available at Aetrix Electronics and suitable for backplane interface drivers, industrial bus repeaters, test equipment signal conditioning, and legacy system bus extenders requiring stable component supply across extended product lifecycles.
Supply support for PI74FCT16244ATVE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Pericom Semiconductor (now part of Diodes Incorporated) specialized in high-speed interface and timing solutions for computing, communications, and industrial systems before its 2017 acquisition.
The PI74FCT16244ATVE belongs to the FCT logic family - engineered for 5V TTL-compatible bus interfacing with emphasis on low noise, high drive, and hot-swap reliability in mission-critical backplane environments.
FAQ
What is the maximum operating frequency supported by PI74FCT16244ATVE?
The device does not specify a maximum clock frequency, but its 3.2ns maximum propagation delay (tPLH) and 4.3ns output disable time (tPHZ) support reliable operation in 16-bit parallel buses running up to 300MHz under controlled load conditions (CL ≤ 50pF, RL = 500Ω). Actual usable frequency depends on PCB trace length, termination, and capacitive loading.
Does PI74FCT16244ATVE require external pull-up or pull-down resistors on its control inputs?
No. The inputs feature built-in hysteresis (100mV) and guaranteed VIH ≥ 2.0V and VIL ≤ 0.8V at 5V supply, allowing direct connection to standard TTL or CMOS logic outputs without biasing. External resistors are unnecessary unless interfacing with open-drain or high-impedance sources.
Can PI74FCT16244ATVE be used in mixed-voltage systems with 3.3V controllers?
Yes - its inputs are 5V-tolerant and accept 3.3V logic HIGH (VIH min = 2.0V), so it can interface directly with 3.3V microcontrollers or FPGAs. However, outputs swing rail-to-rail at 5V, requiring level translation if driving 3.3V-only receivers.
How does the power-off disable feature behave during partial power loss?
When VCC drops below ~0.5V, all outputs enter high-impedance state regardless of xOE pin state - preventing backfeeding or contention on powered bus segments. This behavior is tested and guaranteed down to VCC = 0V, making it suitable for staged power-down sequences in modular systems.
PI74FCT16244ATVE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74FCT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 4
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
PI74FCT16244ATVE FAQ
1.How can I place an order for PI74FCT16244ATVE through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74FCT16244ATVE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PI74FCT16244ATVE reliable?
The price and inventory of PI74FCT16244ATVE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74FCT16244ATVE is usually 5 days.
3.What payment methods are accepted for PI74FCT16244ATVE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74FCT16244ATVE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI74FCT16244ATVE?
PI74FCT16244ATVE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74FCT16244ATVE order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PI74FCT16244ATVE?
For technical support, including PI74FCT16244ATVE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74FCT16244ATVE requirements.
6.How does Aetrix verify that PI74FCT16244ATVE is sourced from the original manufacturer or authorized distributors?
All PI74FCT16244ATVE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PI74FCT16244ATVE meets industry standards.
7.What is the process for return or replacement of PI74FCT16244ATVE?
All PI74FCT16244ATVE units undergo pre-shipment inspection (PSI). If there is an issue with PI74FCT16244ATVE, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PI74FCT16244ATVE part is unused and in its original packaging.
Return procedure for PI74FCT16244ATVE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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